xref: /dpdk/lib/meson.build (revision 4e2cf9af)
1# SPDX-License-Identifier: BSD-3-Clause
2# Copyright(c) 2017-2019 Intel Corporation
3
4
5# process all libraries equally, as far as possible
6# "core" libs first, then others alphebetically as far as possible
7# NOTE: for speed of meson runs, the dependencies in the subdirectories
8# sometimes skip deps that would be implied by others, e.g. if mempool is
9# given as a dep, no need to mention ring. This is especially true for the
10# core libs which are widely reused, so their deps are kept to a minimum.
11libraries = [
12	'kvargs', # eal depends on kvargs
13	'telemetry', # basic info querying
14	'eal', # everything depends on eal
15	'ring',
16	'rcu', # rcu depends on ring
17	'mempool', 'mbuf', 'net', 'meter', 'ethdev', 'pci', # core
18	'cmdline',
19	'metrics', # bitrate/latency stats depends on this
20	'hash',    # efd depends on this
21	'timer',   # eventdev depends on this
22	'acl', 'bbdev', 'bitratestats', 'cfgfile',
23	'compressdev', 'cryptodev',
24	'distributor', 'efd', 'eventdev',
25	'gro', 'gso', 'ip_frag', 'jobstats',
26	'kni', 'latencystats', 'lpm', 'member',
27	'power', 'pdump', 'rawdev', 'regexdev',
28	'rib', 'reorder', 'sched', 'security', 'stack', 'vhost',
29	# ipsec lib depends on net, crypto and security
30	'ipsec',
31	#fib lib depends on rib
32	'fib',
33	# add pkt framework libs which use other libs from above
34	'port', 'table', 'pipeline',
35	# flow_classify lib depends on pkt framework table lib
36	'flow_classify', 'bpf', 'graph', 'node']
37
38if is_windows
39	libraries = [
40		'kvargs',
41		'telemetry',
42		'eal',
43		'ring',
44		'mempool', 'mbuf', 'net', 'meter', 'ethdev', 'pci',
45	] # only supported libraries for windows
46endif
47
48default_cflags = machine_args
49default_cflags += ['-DALLOW_EXPERIMENTAL_API']
50default_cflags += ['-DALLOW_INTERNAL_API']
51
52if cc.has_argument('-Wno-format-truncation')
53	default_cflags += '-Wno-format-truncation'
54endif
55
56enabled_libs = [] # used to print summary at the end
57
58foreach l:libraries
59	build = true
60	reason = '<unknown reason>' # set if build == false to explain why
61	name = l
62	use_function_versioning = false
63	sources = []
64	headers = []
65	includes = []
66	cflags = default_cflags
67	objs = [] # other object files to link against, used e.g. for
68	          # instruction-set optimized versions of code
69
70	# use "deps" for internal DPDK dependencies, and "ext_deps" for
71	# external package/library requirements
72	ext_deps = []
73	deps = []
74	# eal is standard dependency once built
75	if dpdk_conf.has('RTE_LIBRTE_EAL')
76		deps += ['eal']
77	endif
78
79	dir_name = 'librte_' + l
80	subdir(dir_name)
81
82	if build
83		shared_deps = ext_deps
84		static_deps = ext_deps
85		foreach d:deps
86			if not is_variable('shared_rte_' + d)
87				error('Missing internal dependency "@0@" for @1@ [@2@]'
88						.format(d, name, 'lib/' + dir_name))
89			endif
90			shared_deps += [get_variable('shared_rte_' + d)]
91			static_deps += [get_variable('static_rte_' + d)]
92		endforeach
93	endif
94
95	if not build
96		dpdk_libs_disabled += name
97		set_variable(name.underscorify() + '_disable_reason', reason)
98	else
99		enabled_libs += name
100		dpdk_conf.set('RTE_LIBRTE_' + name.to_upper(), 1)
101		install_headers(headers)
102
103		libname = 'rte_' + name
104		includes += include_directories(dir_name)
105
106		if sources.length() == 0
107			# if no C files, just set a dependency on header path
108			shared_dep = declare_dependency(include_directories: includes)
109			static_dep = shared_dep
110		else
111			if is_windows and use_function_versioning
112				message('@0@: Function versioning is not supported by Windows.'
113				.format(name))
114			endif
115
116			if use_function_versioning
117				cflags += '-DRTE_USE_FUNCTION_VERSIONING'
118			endif
119
120			# first build static lib
121			static_lib = static_library(libname,
122					sources,
123					objects: objs,
124					c_args: cflags,
125					dependencies: static_deps,
126					include_directories: includes,
127					install: true)
128			static_dep = declare_dependency(
129					include_directories: includes,
130					dependencies: static_deps)
131
132			if not use_function_versioning or is_windows
133				# use pre-build objects to build shared lib
134				sources = []
135				objs += static_lib.extract_all_objects(recursive: false)
136			else
137				# for compat we need to rebuild with
138				# RTE_BUILD_SHARED_LIB defined
139				cflags += '-DRTE_BUILD_SHARED_LIB'
140			endif
141			version_map = '@0@/@1@/rte_@2@_version.map'.format(
142					meson.current_source_dir(), dir_name, name)
143			implib = dir_name + '.dll.a'
144
145			def_file = custom_target(libname + '_def',
146				command: [map_to_win_cmd, '@INPUT@', '@OUTPUT@'],
147				input: version_map,
148				output: '@0@_exports.def'.format(libname))
149
150			mingw_map = custom_target(libname + '_mingw',
151				command: [map_to_win_cmd, '@INPUT@', '@OUTPUT@'],
152				input: version_map,
153				output: '@0@_mingw.map'.format(libname))
154
155			if is_ms_linker
156				lk_args = ['-Wl,/def:' + def_file.full_path(),
157					'-Wl,/implib:lib\\' + implib]
158			else
159				if is_windows
160					lk_args = ['-Wl,--version-script=' + mingw_map.full_path()]
161				else
162					lk_args = ['-Wl,--version-script=' + version_map]
163				endif
164			endif
165
166			lk_deps = [version_map, def_file, mingw_map]
167			if not is_windows
168				# on unix systems check the output of the
169				# check-symbols.sh script, using it as a
170				# dependency of the .so build
171				lk_deps += custom_target(name + '.sym_chk',
172					command: [check_symbols,
173						version_map, '@INPUT@'],
174					capture: true,
175					input: static_lib,
176					output: name + '.sym_chk')
177			endif
178
179			shared_lib = shared_library(libname,
180					sources,
181					objects: objs,
182					c_args: cflags,
183					dependencies: shared_deps,
184					include_directories: includes,
185					link_args: lk_args,
186					link_depends: lk_deps,
187					version: abi_version,
188					soversion: so_version,
189					install: true)
190			shared_dep = declare_dependency(link_with: shared_lib,
191					include_directories: includes,
192					dependencies: shared_deps)
193
194			dpdk_libraries = [shared_lib] + dpdk_libraries
195			dpdk_static_libraries = [static_lib] + dpdk_static_libraries
196		endif # sources.length() > 0
197
198		set_variable('shared_rte_' + name, shared_dep)
199		set_variable('static_rte_' + name, static_dep)
200		message('lib/@0@: Defining dependency "@1@"'.format(
201				dir_name, name))
202	endif # if build
203endforeach
204